Bank Swallows in Washington
When bank swallows are present in Washington, when they nest, which native Washington plants feed them, and how to host them in a USDA 4a–9a yard.
- Status in Washington
- Summer breeder
- Nesting window
- May–July
- Broods
- 1 per season
- Hardiness zones
- USDA 4a–9a
When to expect bank swallows in Washington
Bank Swallows are summer residents in Washington, arriving shortly before nesting begins in May and leaving after the young are independent.
Marine west-coast climate west of the Cascades, semi-arid shrub-steppe to the east.
Nesting in Washington
Across Washington, bank swallows typically nest from May–July. Plan around that window: April for setup, July for clean-out.
Dry, sunny summers west of the Cascades; hot in the Columbia Basin.
- Bank Swallows don't use nest boxes. Keep dense native shrubs and trees such as paper birch, chokecherry, ponderosa pine for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Washington plants that attract bank swallows
Of the regional native plants we track for Washington, these 8 provide food or cover bank swallows use:
Insect-rich in fall and seed in winter.
Catkin seed feeds redpolls and siskins all winter.
Dark summer fruit and heavy caterpillar load.
Seeds and bark insects; pygmy nuthatch and woodpecker habitat.
Late-season bloom supports insects; seed for sparrows.
Acorns and a rich insect community in the Pacific Northwest.
Seed for crossbills, siskins and chickadees.
Early catkins draw insects for arriving warblers and hummingbirds.
Feeding bank swallows through the Washington year
- Top foods: None — sandy river banks are the habitat.
- In Washington's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for bank swallows · Best feeder for bank swallows
Frequently asked
Are bank swallows in Washington year-round?
No. Bank Swallows are summer breeders in Washington and leave for the winter.
When do bank swallows nest in Washington?
Nesting in Washington typically runs May–July, with 1 per season. Clutches are 1–7 eggs, incubated for 13–16 days.
What native plants attract bank swallows in Washington?
Tall goldenrod, Paper birch, Chokecherry, Ponderosa pine, Rabbitbrush, Oregon white oak, Douglas fir, Willow (Bebb) are native plants in Washington that provide food or cover for bank swallows.
Bank Swallows in other regions
Other backyard birds in Washington
Sources
- Bank Swallow — All About Birds, Cornell Lab of Ornithology
- Bank Swallow life history — Cornell Lab of Ornithology
- Bank Swallow — Audubon Guide to North American Birds
- eBird region overview and bar charts — Washington
- USDA Plant Hardiness Zone Map (2023)
- Audubon Native Plants Database
Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.